Answer:
A. The country’s population is aging
Explanation:
- The total fertility rate is the fertility rate that shows absolute or relative fertility over a period of time. It represents the number of children that can be born over the time period.
- The fertility rate changes over the time period and is related to the age and health of women. The population of the country is said to be low or declining when the number is one or less than one. Most of the developed nations have a declining fertility rate of 1.1 to 1.5.
D a microscope because the scientist will have to eventually view the strains up close to see the progress of the antibiotic
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